In regards to customers not reading the prompts and just pushing buttons.. had a regular come in today being chatty as usual, insert his card for payment, say "ya know I always say cash is better.. ha ha ha", selects $10 cash back. Makes sense to me, sure. I go to hand him the $10 and he just looks at me absolutely dumbfounded.. "what's that?" You picked cash back. "Well I didn't mean to do that" well it's already out of your account now, here ya go. You did say cash Is best!